Change Engine Oil; Service Air Filter - Briggs & Stratton Vanguard 540000 Manuel De L'opérateur

similar laws. Contact the original equipment manufacturer, retailer, or dealer to obtain
a spark arrester designed for the exhaust system installed on this engine.
Remove accumulated debris from muffler and cylinder area. Inspect the muffler for cracks,
corrosion, or other damage. Remove the deflector or the spark arrester, if equipped, and
inspect for damage or carbon blockage. If damage is found, install replacement parts before
operating.
WARNING
Replacement parts must be of the same design and installed in the same position as
the original parts. Other parts may not perform as well, may damage the unit, and may
result in injury.

Change Engine Oil

See Figure: 9, 10, 11
Used oil is a hazardous waste product and must be disposed of properly. Do not discard
with household waste. Check with your local authorities, service center, or dealer for safe
disposal/recycling facilities.
Remove Oil
1. With engine off but still warm, disconnect the spark plug wire(s) (D, Figure 9) and
keep it away from the spark plug(s) (E).
2. Remove the dipstick (A, Figure 10).
3. Remove the oil drain plug (F, Figure 11). Drain the oil into an approved container.
4. After the oil has drained, install and tighten the oil drain plug (F, Figure 11).
Change Oil Filter, if equipped
Some models are equipped with an oil filter. For replacement intervals, see the
Maintenance Schedule.
1. Drain the oil from the engine. See Remove Oil section.
2. Remove the oil filter (G, Figure 11) and dispose of properly.
3. Before you install the new oil filter, lightly lubricate the oil filter gasket with fresh,
clean oil.
4. Install the oil filter by hand until the gasket contacts the oil filter adapter, then tighten
the oil filter 1/2 to 3/4 turns.
Add oil. See Add Oil section.
5.
6. Start and run the engine. As the engine warms up, check for oil leaks.
7. Stop the engine and check the oil level. Correct oil level is at the top of the full indicator
(B, Figure 10) on the dipstick.
Add Oil
• Make sure the engine is level.
• Clean the oil fill area of any debris.
• See the Specifications section for oil capacity.
1. Remove the dipstick (A, Figure 10) and wipe with a clean cloth.
2. Slowly pour oil into the engine oil fill (C, Figure 10). Do not overfill. After adding oil,
wait one minute and then check the oil level.
3. Install and tighten the dipstick (A, Figure 10).
4. Remove the dipstick and check the oil level. Correct oil level is at the top of the full
indicator (B, Figure 10) on the dipstick.
5. Reinstall and tighten the dipstick (A, Figure 10).
6. Connect the spark plug wire(s) (D, Figure 9) to the spark plug(s) (E).

Service Air Filter

See Figure: 12, 13
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
• Never start and run the engine with the air cleaner assembly (if equipped) or the air
filter (if equipped) removed.
NOTICE Do not use pressurized air or solvents to clean the filter. Pressurized air can
damage the filter and solvents will dissolve the filter.
See the Maintenance Schedule for service requirements.
Various models use either a foam or a paper filter. Some models may also have an optional
pre-cleaner that can be washed and reused. Compare the illustrations in this manual with
the type installed on your engine and service as follows.
Paper Air Filter
1. Open the fastener(s) (A, Figure 12) and remove the cover (B).
2. Remove the air filter (C, Figure 12).
3. To loosen debris, gently tap the air filter on a hard surface. If the air filter is excessively
dirty, replace with a new air filter.
4. To remove the safety filter (D, Figure 12), if equipped, carefully pull it away from the
air cleaner body (E). Make sure that dirt or debris does not enter the engine.
5. Install the new safety filter (D, Figure 12) in the air cleaner body (E).
6. Install the air filter (C, Figure 12) over the safety filter (D).
7. Install the cover (B, Figure 12) and close the fastener(s) (A).
Paper Air Filter
1. Remove the fastener(s) (A, Figure 13).
2. Remove the cover (B, Figure 13).
3. Remove the fastener(s) (C, Figure 13) and retainer (D).
4. Remove the air filter (E, Figure 13).
5. Remove the pre-cleaner (F, Figure 13), if equipped, from the air filter (E).
6. To loosen debris, gently tap the air filter (E, Figure 13) on a hard surface. If the air
filter is excessively dirty, replace with a new air filter.
7. Wash the pre-cleaner (F, Figure 13), if equipped, in liquid detergent and water. Allow
the pre-cleaner to thoroughly air dry. Do not oil the pre-cleaner.
8. Assemble the dry pre-cleaner (F, Figure 13), if equipped, to the air filter (E).
9. Install the air filter (E, Figure 13) and secure with retainer (D) and fastener(s) (C).
10. Install the cover (B, Figure 13) and secure with the fastener(s) (A). Make sure the
fastener(s) is tight.
Service Fuel System
See Figure: 14, 15
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
• Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition sources.
• Check fuel lines, tank, cap, and fittings frequently for cracks or leaks. Replace if
necessary.
• Before cleaning or replacing the fuel filter, drain the fuel tank or close the fuel shut-
off valve.
• If fuel spills, wait until it evaporates before starting engine.
• Replacement parts must be the same and installed in the same position as the original
parts.
Fuel Filter, if equipped
1. Before cleaning or replacing the fuel filter (A, Figure 14), drain the fuel tank or close
the fuel shut-off valve. Otherwise, fuel can leak out and cause a fire or explosion.
2. Use pliers to squeeze tabs (B, Figure 14) on the clamps (C), then slide the clamps
away from the fuel filter (A). Twist and pull the fuel lines (D) off of the fuel filter.
3. Check the fuel lines (D, Figure 14) for cracks or leaks. Replace if necessary.
4. Replace the fuel filter (A, Figure 14) with an original equipment replacement filter.
5. Secure the fuel lines (D, Figure 14) with clamps (C) as shown.
Fuel Strainer, if equipped
1. Remove the fuel cap (A, Figure 15).
2. Remove the fuel strainer (B, Figure 15).
3. If the fuel strainer is dirty, clean or replace it. If you replace the fuel strainer, make
sure to use an original equipment replacement fuel strainer.
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